Tractor mounted loading shovel and scoop attachment



R. C. LARSEN TRACTOR MOUNTED LOADING SHOVEL AND SCOOP ATTACHMET Filed Sept. 6, 1946 2 Sheets-Sheet l I N VEN TOR.

A'ITU RN EYS TRACTOR MOUNTED LOADING SHOVEIL AND SCOOP ATTACHMET Filed Sept. 6, 1946 R. C. LARSEN Nov. s, 1953 2 Sheets-Sheet 2 v I Ill 311 Ilfl llllll ll m 'llllllllll lllll f INVENTOR. If.flzarzyerz.

ATTEIRNEY Patented Nov. 3,' 1953 v UNITED STATES PATENT OFFICE TRACTOR MOUNTED LOADING SHOVEL AND SCOOP ATTACHMENT Russell G. Larsen, Kimberly, Idaho Application September 6, 1946, Serial No. 695,093

This invention relates to an improved shovel or scoop attachment for loaders, and more particularly to an attachment of this nature for a loader shown in my Patent 2,311,671.

An object of the invention is to provide an attachment that will operate either while the loader is travelling forward or backward.

Another object of the invention is to provide an attachment which is capable of operating as a bulldozer or land leveler.

A further object of the invention is to provide an attachment that is constructed of a few simple parts, that is durable, eflicient, and can be manufactured inexpensively.

With the above and other objects and advantages in view, the invention consists of the novel details of construction, arrangement and combination of parts more fully hereinafter described, claimed and illustrated in the accompanying drawings in which:

Figure 1 is a sectional view of the shovel in position for backward movement of the loader;

Figure 2 is a front view thereof;

Figure 3 is a sectional view of the shovel in position for forward movement of the loader and Figure 4 is a sectional view on the line 4-4 of Figure 1.

Referring now to the drawings wherein like reference characters denote correspondingparts the scoop attachment of this invention includes a trip bar II which extends from a tractor, as indicated by the numeral I0, and the bar II is pivotally connected by a pin I2 to cars I3 on an angle iron [4 of the scoop frame.

Positioned below the trip bar II and parallel thereto are parallel bars I5 that also extend from the tractor, and the bars I5 are pivotally connected to a U-shape yoke I6. Rods I! extend upwardly from the bars I5 and a pressure plate I8, slidably mounted on the rods I1, is resiliently urged downwardly by springs I9, positioned on the rods l1 and held by nuts 20 on the upper ends of the rods.

The tension of the plate I8 retains the bar II in position and holds a tripper 2 I, which is pivotally mounted by a pin 22 on the bars I5 in position. When the tripper 2| is rocked on the pins 22 the bar I I is moved against the action of the spring pressed plate I8, freeing the bar II for operation in load-dumping operations, similar to that of the bar II in the above-noted Patent No. 2,311,671.

Depending from the ends of the bar I4 are vertically inclined end bars 25 of the shovel frame, and rods 26 which are slidably mounted in 3 Claims. (c1. 37-124) brackets 21, are pivotally attached to the bars 25 at points intermediate of the length thereof. The brackets 21 are carried by elevating arms 28 which are pivotally connected to the scoop and lower ends of the bars 25 with pins 29. Springs 36 are positioned on the rods 26 between the brackets 21 and holding means on the opposite ends of the rods, not shown.

The scoop 3| is provided with a semi-circular hub 32 which is a continuation of the pins 29, and as shown in Figure 3 the scoop includes a base plate 33 that extends in one direction and a plate 3 5 that extends in the opposite direction. The plates 33 and 3d are provided with beveled edges 35, as shown.

lt'he side of the scoop on which the plate 33 is positioned is provided with end plates. 35 which connect the edges of the plate 33 to the end bars 25. The scoop is also provided with an intermediate gusset plate 39 which extends from the plate 34 to the plate 33. The back of the scoop is provided with a door 31 that is hinged to the angle iron M with a pin 38, and the door is provided with a slot 40 that straddles one side of the gusset plate 39. v

The elevating arms 28 are connected by an angle iI from which extends an arm 42, the extended end of which is pivotally connected to an car 43 of a hydraulic jack or operating device M, by a pin 45. The jack 44 is adapted to elevate the arms 28 from the position shown in Figure 1 to the position shown in Figure 3.

With the parts as shown in Figure 1, the scoop is positioned with the plate 33 in the scraping position, with the device traveling in the direction of the arrow, and with the parts as shown in Figure 3, the plate 3a is in the scraping position, whereby the device is adapted for use in both directions. With the plate 3 3 in the scraping position the soil raises the door 31 and passes into the scoop to the plate 33, and after this part of the scoop is filled the the scoop is adjusted to the position shown in Figure 3 and the weight of the soil closes the door. The scoop may also be used without the door as the pin 38 is removable and with this pin removed the door may be removed from the scoop.

Having thus described the invention, what is claimed as new and desired to be obtained by Letters Patent is:

1. In a scoop attachment for a tractor, the combination which comprises a base plate having a beveled end and provided at the opposite end with a hub having pins extended from the ends thereof, vertically inclined end bars positioned at the sides of the plate and in the lower ends of which the said pins are pivotally mounted, triangular shaped end plates connecting the edges of the base plate to said end bars, an angle bar having spaced ears thereon connecting the 5 and positioned to provide a closure between the 10 p teplates of the scoop, said pins extended from the ends of the hub adapted to pivotally mount the scoop between the ends of eleyatingnrmgoim; tractor with the ears of the angle bahconnected to a trip bar of the tractor and with said end b rs 15 Number pivotally connected, at points intermediateofthe ends thereof, to rods extendsdairomihe tractor,

2. A scoop attachment as described in clai m 1, wherein the plate extended from theh-ub 'of the scoop is positioned at-an acute angle in rela- 20 tion to a plane extended through the base plate" of the scoop.

3. A scoop attachment as described in claim 1, wherein an intermediate bar similar to said end bars extends from the angle bar to the hub of the scoop and the intermediate bar is supported from the plates of the scoop with gusset plates and the door is provided With a slot to straddle 'the said; gusset plate. connected to the RUSSELL C. LARSEN.

flel e gences qited in the file of this patent UNITED" STATES PATENTS w h Narne Date 953 ,40 6 Beam Mar. 29, 1910* 2,076,939 Coir- Apr. 13, 1937' Larsen Feb. 23, 1945 

